package com.wires.lu.practice;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

class MyResource{
    private volatile boolean FLAG = true;//默认开启 进行生产+消费
    private AtomicInteger atomicInteger=new AtomicInteger();

    BlockingQueue<String> blockingQueue=null;

    public MyResource(BlockingQueue<String> blockingQueue) {
        this.blockingQueue = blockingQueue;
        System.out.println(blockingQueue.getClass().getName());
    }

    public void myProd() throws Exception{
        String data=null;
        boolean reValue;
        while (FLAG){
            data=atomicInteger.incrementAndGet()+"";
            reValue=blockingQueue.offer(data,2L, TimeUnit.SECONDS);
            if(reValue){
                System.out.println(Thread.currentThread().getName()+"\t 插入队列"+data+"成功");
            }else{
                System.out.println(Thread.currentThread().getName()+"\t 插入队列"+data+"失败");
            }
            TimeUnit.SECONDS.sleep(1);
        }
        System.out.println(Thread.currentThread().getName()+"\t 大老板叫停了 表示FLAG-false ,生产动作结束");
    }
    public void myConsumer() throws  Exception{
        String result=null;
        while (FLAG){
            result=blockingQueue.poll(2,TimeUnit.SECONDS);
            if(null== result || result.equalsIgnoreCase("")){
                FLAG=false;
                System.out.println(Thread.currentThread().getName()+"\t 超过2秒没有取到蛋糕，消费退出" );
                return;
            }
            System.out.println(Thread.currentThread().getName()+"\t 消费队列 蛋糕"+result+"成功");
        }
    }
    public void stop() throws  Exception{
        this.FLAG=false;
    }

}


/**
 *
 * volatile/CAS/atomicInteger/BlockQueue/线程交互
 *
 */

public class ProdConsumer_BlockQueueDemo {


    public static void main(String[] args) throws InterruptedException {
        MyResource myResource=new MyResource(new ArrayBlockingQueue<>(10));
        new Thread(()->{
            System.out.println(Thread.currentThread().getName()+"\t 生产线程启动");
            try {
                myResource.myProd();
            } catch (Exception e) {
                e.printStackTrace();
            }
        },"prod").start();

        new Thread(()->{
            System.out.println(Thread.currentThread().getName()+"\t 消费线程启动");
            try {
                myResource.myConsumer();
            } catch (Exception e) {
                e.printStackTrace();
            }
        },"consumer").start();

        TimeUnit.SECONDS.sleep(5);
        try {
            myResource.stop();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}
